491 solar installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Foothill Ranch: EnergyAid, CR Score 63/100; 4.7★ from 1,353 Google reviews; open 24/7.
Best for emergencies (open 24/7): Solar Express Cleaning, posts 24/7 hours; ranked #2 of 491.
Most-reviewed: Guyou Roofing and Solar, 1,365 Google reviews at 4.9★, the most of 491 ranked; ranked #44.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
491 Foothill Ranch solar installers are ranked here by CR Score, from ten published factors. 48 are open 24/7, 272 open Saturdays and 142 open Sundays, based on posted hours. The median Google rating is 5.0★ across 491 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | EnergyAid | 63 | 4.7★ (1,353) | Santa Ana, 11 mi away | 24/7 | Overall |
| 2 | Solar Express Cleaning | 62 | 5.0★ (308) | Chino Hills, 25 mi away | 24/7 | Emergencies |
| 3 | Affordable Solar Cleaning Pros | 61 | 5.0★ (628) | Loma Linda, 36 mi away | 24/7 | — |
| 4 | Sunrun Solar | 61 | 4.6★ (231) | Irvine, 5 mi away | Sat · Sun | — |
| 5 | Mr. Solar Clean | 60 | 5.0★ (369) | Carson, 35 mi away | 24/7 | — |
| 6 | Solar Sparkle | 60 | 5.0★ (110) | Anaheim, 10 mi away | Sat · Sun · Evenings | — |
| 7 | Pacific Solar Care & Window Cleaning | 60 | 5.0★ (310) | Eastvale, 12 mi away | Sat | — |
| 8 | CL Window Shine - Pressure Washing, & Solar Installation | 60 | 4.9★ (322) | Anaheim, 7 mi away | 24/7 | — |
| 9 | EnergyAid | 60 | 4.8★ (534) | San Bernardino, 34 mi away | 24/7 | — |
| 10 | Good Energy Network | 60 | 5.0★ (43) | Irvine, 11 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.7★ from 1,353 Google reviews, listed on Google as “Solar energy company”.
Based in Chino Hills, 25 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 308 Google reviews, listed on Google as “Solar energy company”.
Based in Loma Linda, 36 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 628 Google reviews, listed on Google as “Solar energy system service”.
Based in Irvine, 5 mi away
Ranked #4 because of its Google rating and trade focus: 4.6★ from 231 Google reviews, listed on Google as “Solar energy company”.
Based in Carson, 35 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 369 Google reviews, listed on Google as “Solar energy company”.
Based in Anaheim, 10 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 110 Google reviews, listed on Google as “Solar energy company”.
Based in Eastvale, 12 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 310 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Anaheim, 7 mi away
Ranked #8 because of its Google rating and review volume: 4.9★ from 322 Google reviews.
Based in San Bernardino, 34 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 534 Google reviews, listed on Google as “Solar energy system service”.
Based in Irvine, 11 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Solar energy company”.
Based in Ladera Ranch, 9 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 73 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Santa Ana, 11 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 156 Google reviews, listed on Google as “Solar energy company”.
Based in Irvine, 12 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 99 Google reviews, listed on Google as “Solar energy company”.
Based in Foothill Ranch
Ranked #14 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Solar energy company”.
Based in Irvine, 6 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 326 Google reviews, listed on Google as “Solar energy company”.
Based in Lake Elsinore, 15 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in La Verne, 30 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 246 Google reviews, listed on Google as “Solar energy company”.
Based in Irvine, 11 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Solar energy company”.
Based in Santa Fe Springs, 29 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 515 Google reviews, listed on Google as “Solar energy company”.
Based in Santa Fe Springs, 29 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 262 Google reviews, listed on Google as “Solar energy company”.
Based in Good Hope, 23 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Corona, 14 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 559 Google reviews, listed on Google as “Solar energy system service”.
Based in Aliso Viejo, 5 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Solar energy company”.
Based in Long Beach, 29 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 132 Google reviews, listed on Google as “Solar panel maintenance service”.
Based in Corona, 15 mi away
Ranked #25 because of its Google rating and trade focus: 4.2★ from 334 Google reviews, listed on Google as “Solar energy company”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 491 ranked solar installers here; the rest are on their profiles.
20 more solar installers within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| All Covered Solar Solutions | 5.0★ (2) | 15 mi |
| American Energy Networks | 5.0★ (2) | 16 mi |
| Back Bay Solar Energy | 1.0★ (2) | 6 mi |
| Evergreen Renewables | 1.0★ (2) | 6 mi |
| Express Roofing and Solar of San Juan Capistrano | 5.0★ (2) | 8 mi |
| GoSolar | 3.0★ (2) | 5 mi |
| Living Green Solar | 5.0★ (2) | 12 mi |
| OC Solar Panel Cleaning | 4.5★ (2) | 8 mi |
| Panel Scrub, LLC. | 5.0★ (2) | 16 mi |
| Raya Solar | 5.0★ (2) | 12 mi |
| Shorebreak Energy | 5.0★ (2) | 12 mi |
| Solar House Mission Viejo | 5.0★ (2) | 6 mi |
| Solar Messenger | 5.0★ (2) | 17 mi |
| Solar Topper | 5.0★ (2) | 8 mi |
| Solar Watt Solutions | 5.0★ (2) | 10 mi |
| SolarCo Energy | 5.0★ (2) | 6 mi |
| SolarCustomized Solutions Mission Viejo | 5.0★ (2) | 8 mi |
| SolarSun Panels Divine | 5.0★ (2) | 6 mi |
| Sunny Solar Service | 5.0★ (2) | 10 mi |
| VietSolar.com | 3.0★ (2) | 18 mi |
Typical prices in USD, adjusted for California with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Solar panel installation | $29,770 | $33,680 | $36,640 | Per system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.08 Pacific factor (2025 Cost vs. Value Report) | October 2026 |
We scored 491 Foothill Ranch solar installers on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Foothill Ranch data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |